I have an installation of Seblod, that runs fine for some years. Suddenly all the searches don't work no more. The list view is ok, but filling out any search field and triggering the search loses Itemid and "view=list", so the result is empty.
When I use a form action field to keep both parameters, the search result works.
We have changed a lot of details of the site. So I can't tell if it's caused by an update or by our work.